The night before the launch of the Challenger shuttle, officials from Morton Thiokol (Solid Rocket Booster manufacturer) and NASA participated in a teleconference to discuss whether to postpone the shuttle launch due to predicted low temperatures at Kennedy Space Center. This case provides background on the history of NASA's shuttle program, engineering firm Thiokol and Thiokol SRB, and O-ring expert Roger Boisjoly, who was adamant that the shuttle not be launched.